168897760 has 24 divisors (see below), whose sum is σ = 399021336. Its totient is φ = 67559040.

The previous prime is 168897733. The next prime is 168897767. The reversal of 168897760 is 67798861.

It is a junction number, because it is equal to n+sod(n) for n = 168897698 and 168897707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (168897767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 527646 + ... + 527965.

It is an arithmetic number, because the mean of its divisors is an integer number (16625889).

Almost surely, 2^168897760 is an apocalyptic number.

168897760 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

168897760 is an abundant number, since it is smaller than the sum of its proper divisors (230123576).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

168897760 is a wasteful number, since it uses less digits than its factorization.

168897760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055626 (or 1055618 counting only the distinct ones).

The product of its (nonzero) digits is 1016064, while the sum is 52.

The square root of 168897760 is about 12996.0670973953. The cubic root of 168897760 is about 552.7659673710.

It can be divided in two parts, 16889 and 7760, that added together give a square (24649 = 157²).

The spelling of 168897760 in words is "one hundred sixty-eight million, eight hundred ninety-seven thousand, seven hundred sixty".